Clang_with_Microsoft_CodeGen_check.cpp

#include <iostream>
#include <stdexcept>
#include <cstdint>
#define CONSTEXPR_FUNCTION constexpr

void foo() noexcept(false) {
	throw std::runtime_error("error test");
}

namespace detail {
	CONSTEXPR_FUNCTION uint8_t DxGetRValue(unsigned int X8R8G8B8) { return static_cast<uint8_t>((0x00FF0000 & X8R8G8B8) >> 16); }
	CONSTEXPR_FUNCTION uint8_t DxGetGValue(unsigned int X8R8G8B8) { return static_cast<uint8_t>((0x0000FF00 & X8R8G8B8) >> 8); }
	CONSTEXPR_FUNCTION uint8_t DxGetBValue(unsigned int X8R8G8B8) { return static_cast<uint8_t>(0x000000FF & X8R8G8B8); }
	struct RGB_t {
		RGB_t() = default;
		CONSTEXPR_FUNCTION RGB_t(uint8_t i_r, uint8_t i_g, uint8_t i_b) : r(i_r), g(i_g), b(i_b) {}
		explicit CONSTEXPR_FUNCTION RGB_t(unsigned int X8R8G8B8) : RGB_t(DxGetRValue(X8R8G8B8), DxGetGValue(X8R8G8B8), DxGetBValue(X8R8G8B8)) {}//C++11:delegating constructor
		uint8_t r;
		uint8_t g;
		uint8_t b;
	};
	RGB_t& operator+=(RGB_t& l, const RGB_t& r) {
		l.r += r.r;
		l.g += r.g;
		l.b += r.b;
		return l;
	}
	struct YPbPr {//ITU-R BT.709 cf.)http://koujinz.cocolog-nifty.com/blog/2009/03/rgbycbcr-a4a5.html
		YPbPr() = default;
		CONSTEXPR_FUNCTION YPbPr(uint8_t i_y, uint8_t i_pb, uint8_t i_pr) : y(i_y), pb(i_pb), pr(i_pr) {}
		explicit CONSTEXPR_FUNCTION YPbPr(uint8_t i_y) : YPbPr(i_y, 0, 0) {}//C++11:delegating constructor
		uint8_t y, pb, pr;
	};
	CONSTEXPR_FUNCTION YPbPr to_YPbPr(RGB_t in) {
		return YPbPr(static_cast<uint8_t>(0.2126 * in.r + 0.7152 * in.g + 0.0722 * in.b), static_cast<uint8_t>(-0.1146 * in.r - 0.3854 * in.g + 0.5 * in.b), static_cast<uint8_t>(0.5 * in.r - 0.4542 * in.g - 0.0458 * in.b));
	}
	CONSTEXPR_FUNCTION RGB_t to_RGB_t(YPbPr in) {
		return RGB_t(static_cast<uint8_t>(in.y + 1.5748 * in.pr), static_cast<uint8_t>(in.y - 0.1873 * in.pb - 0.4681 * in.pr), static_cast<uint8_t>(in.y + 1.8556 * in.pb));
	}
}
int main() {
	constexpr auto c = detail::YPbPr(122);
	constexpr auto c2 = detail::to_RGB_t(c);
	std::cout << "arikitari_na_world!" 
		<< static_cast<unsigned int>(c2.r) << ", " 
		<< static_cast<unsigned int>(c2.g) << ", " 
		<< static_cast<unsigned int>(c2.b) << " "
		<< _MSC_FULL_VER
		<< std::endl;
	try {
		foo();
	}
	catch (const std::exception& er) {
		std::cerr << er.what() << std::endl;
	}
	system("pause");
	return 0;
}